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User Manual for TeachLogic The IRF-2150 LS-4 Forum 232 Sapphire Classroom Sound System Click to enlarge the picture
Contents of the user manual for the TeachLogic The IRF-2150 LS-4 Forum 232
- Product category: Assistive Listening Systems TeachLogic
- Brand: TeachLogic
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for TeachLogic Assistive Listening Systems
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User manual for the TeachLogic The IRF-2150 LS-4 Forum 232 contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any TeachLogic product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official TeachLogic user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a TeachLogic product will considerably shorten its lifespan!
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Product description The TeachLogic IRF-2150 LS-4 Forum 232 Sapphire Classroom Sound System is a 2-channel infrared sound field (with Security Alert) sound presentation system. It includes the IMA-232 Base 50-watt amplifier/mixer which features an automatic energy saving "sleep" mode, and two wireless microphone channels/receivers which provide more freedom and permits hands free performance. Two auxiliary line inputs provide multimedia integration with distribution of sound throughout the entire classroom. The system features two separate outputs for assistive listening and affords recording options with active boards.
The Forum 232 incorporates the Digital Feedback Guard (DFG), a 3-band equalizer, digital limiting, and RS-232 connection for control the panel (IMA-232). Additionally it features two infrared wireless microphone receivers and two 25 watt RMS power amps for a total of 50 watts of class D amplification.
The Sapphire microphone is a classroom microphone, and with its diminutive size, is hardly noticeable to wear. It can be worn with a lanyard or clipped directly to a neckline collar. The Sapphire has high level output, and is constructed to have stable connectivity and elicit exacting vocal definition. With a built-in breath filter, the Sapphire can function as a pass-around hand mic.
A unique Sapphire feature is that with a tap on the power button, the mic mutes for private conversation - tap again to restore to normal operation. Additionally, the auxiliary input allows wireless playback of your iPod through the Sapphire. The mic is built with a three-position slide switch for selecting low, medium, or high microphone volume levels.
For the IRF-2150 system, the ICS-55 comes standard as it was deemed the preferred infrared sensor by TeachLogic for optimum performance. This unit needs to be installed on the ceiling at least 3 feet from the video projector. It comes with a mounting/support bracket and 50 feet of plenum rated cable with an RCA connector on each end. The ideal location for the dome sensor would be in the center of the ceiling. This will provide a clear signal path for the IR transmission from the transmitter to the dome sensor without obstruction. In addition, you will have 360° coverage and will minimize the transmission distance for more reliable performance. It collects the infrared transmission signal via 6 large detecting diodes. The sensor is connected to the mixer/amplifier via a plenum rated cable terminated with RCA connectors. The mixer/amplifier supplies the power to the sensor.
The four included SP-628L's are full range compact coaxial ceiling speakers, providing low distortion and full range frequency response for articulate vocal clarity. The SP-628L is a complete loudspeaker assembly, with 12" frame, perforated steel grill, and integrated steel back can and attached "T" bar for finish edge. Quick installation with minimal tile cutting. Forum 232 Amplifier - Two infrared wireless Microphone receivers
- Two Power Amplifiers: Total 50 watts RMS class D amplifier, 25 watts each channel
- RS-232 wall panel control of line input levels
- Switchable computer anti hum circuit with ON/OFF switch
- Teacher Priority instantly attenuates all line inputs
- Three-band digital equalizer ± 12dB
- Two stereo auxiliary inputs for DVD & Computer/Aux
- Additional DVD input gain, adjustable +10 dB boost
- Front-panel auxiliary input (3.5mm)
- Front Panel ALS Output for Assistive Listening system with gain control (3.5mm)
- Front Panel REC output for Lesson Capture with gain control. (3.5mm)
- Power sleep mode to conserve energy
- Rack or shelf/wall mounting kits (optional)
- Light Weight Aluminum cover
IRT-55 Sapphire Transmitter / Microphone - Long life lithium-ion battery
- Rechargeable via micro USB cable
- Battery level indicator, back light under power switch
- Momentary mute button, backlight blinks in mute mode
- Three level microphone volume switch (low, medium, high)
- Unique TAP feature on the power button, that mutes the mic for private conversation
- Channel A or B selectable
- Low profile clip for mounting
- Wear with a lanyard or directly to neckline collar
In the Box TeachLogic The IRF-2150 LS-4 Forum 232 Sapphire Classroom Sound System 50' Plenum Cable 100' Plenum Rated 18 gauge Speaker Cable Infrared - Limited 5-Year Warranty
Battery - Limited 2-Year Warranty Table of Contents
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Technical parametersTeachLogic IRF-2150 Specs | | | Amplifier | Forum 232 / IMA 232 Amplifier / Receiver | | Receiver | Input : Infrared FM | | Modulation | FM Wide-Band | | Reception | Frequencies:
Channel A: 2.08 MHz
Channel B: 2.54 MHz | | Infrared | Wavelength:850 nm | | Tone Signal | Channel A:32.768 kHz | | De-Emphasis | 50 μs | | Frequency Response | 40 Hz , -18 kHz, ± 3 dB | | S/N Ratio | ›65 dB | | THD | ‹1% @1 kHz | | Nominal Deviation | ± 10 kHz | | Maximum Deviation | ± 25 kHz | | External Sensor | Input: Two, RCA | | Connectivity | Coverage: 2,500ft/² (232.26 m/²) | | Auxiliary Input | One DVD, Line Level, Dual RCA with +10 dB Gain Control
One Aux input with front and rear panel 3.5 mm | | Line Outputs | 2-3.5 mm with Gain Control,Front Panel | | Equalization | 3-Bands digital ±12 dB | | Output Power (RMS) | Two amplifiers, @18 watts ea. (RMS),36 Watts total (RMS) | | Output Impedance | 4 ohm minimum per channel | | Output Connection | One Phoenix connector | | Power Supply | 12 VDC / 2.8 A / 42 W CE,CSA and UL Listed | | Dimensions (W x H x D) | 8.5 x 1.75 x 7.5" (21.59 x 4.45 x 19.05 cm) | | Weight | 1.5 lb (0.68 kg) | | | | Microphone | Sapphire Infrared Transmitter IRT-55 | | Transmission | Carrier: Infrared | | Transmission Frequency | 2.08 MHz and 2.54 MHz | | Channel Switching | A or B : Field Switchable | | Transmitting Diodes | Six | | Modulation | FM Wide-Band | | Pilot Tone | Frequency : 32.768 KHz | | Peak Deviation | ± 25 KHz | | Operating Range | 1,500 Ft ² / 60' Line of Sight | | Battery Level Indicator |
Blue - Full
Purple - Medium
Red - Low | | Battery Type | Lithium-ion ( 3.7 V / 620 mAh) | | Battery Life | Approximately 8-9 Hours/Charge | | External Power | Charger : DC +5 V, Micro USB Connector | | Transmission Angle | 180° Conical | | User Controls | Power Switch (Push) - On/Off
Mute Switch (Push) - On/Off
Mic Switch (3 position) - + 6 db, Normal, - 3 db
Aux. Vol. / Gain - Increase, Decrease
Channel Select - (A or B) in battery compartment | | Auxiliary Input | External : 3.5 mm Stereo Line Level | | Dimensions (H x W x D) | 3.00 x 1.25 x .75" ((7.62 x 3.18 x 1.91 cm) | | Weight | 1.4 oz (39.69 g) with battery | | | | Sensor | ICS-55 | | Operating Frequencies | 2.3 mHz to 2.8 mHz | | IR Receiver | 6 large lens diodes | | Coverage | 360° | | Range | 40-50' (12.19-15.24 m) line of sight, 2500 ft/² (232.25 m/²) | | Mounting | Clip-on "T" bar bracket | | Connector | Female RCA | | Indicator Lights | Green LED for Power On | | Cable | 75 ohm
Dual-shielded
Plenum-rated | | Cable Length | 50' (15.24 m) | | Dimensions | 4.62 x 1.37" (11.73 x 3.47 cm) | | Weight | 0.46 lb (0.2 kg) | | | | Speakers | LS-4 Package (4 - SP-628L 2-Way Lay-in Ceiling Speakers) | | Frequency Range | 80 Hz to 15 kHz, ± 6dB | | Power | 30 Watts Continuous | | Sensitivity | 89 dB SPL (1W/1M) | | Impedance | 8 ohms | | Crossover Frequency | 6 kHz | | Nominal Coverage Angle | 90° x 90° | | LF Detail | Polymica / rubber | | Magnet | 10 oz | | HF Driver Size | High efficient 1"domed tweeter, neodymium | | Enclosure Material | Air Sealed Metal Backcan Infinite Baffle
White Powder Coated Finish | | Termination | Screw terminals for secure speaker wire connection | | Mounting | 1 x 2' Lay-in speaker assembly
Attached "T" Bar support | | Dimensions (H x W x D) | 12.25 x 23.75 x 6.25" (31.11 x 60.32 x 15.88 cm)
13" (33.02 cm) with "T" Bar support
5/8" (1.59 cm) panel thickness |
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